hey i have a pavilion a250n and i took out the drives the hd the dvd and cd drive the floppy and the memorycard reader...and now when i start my computer up it says...Reboot and Select proper boot device or insert boot media in selected boot device and press a key....what should i do...all i did was take out the drives for a couple of days and put them back now it wont boot to windows//// thanks